A battery energy storage system (BESS) enables a utility to balance renewable generation so that local stored energy resources can be tapped according to regional electrical demand. Through frequency regulation and voltage control, these systems can help mitigate the threat of electricity service interruptions to critical load areas while improving power quality and grid stability.
To meet its needs, the German utility required a total capacity of 90 MW, making this one of the world’s largest BESS projects.
Nidec’s solution consisted of six 15 MW “plug-and-play” systems, each complete with power converters, a transformer, batteries and a control system. Each BESS was mounted inside a container for easy transportation and installation.
The use of Nidec’s innovative battery storage technology not only enables Germany’s power grid to better accommodate renewable energy sources, it also reduces nitrogen oxide, carbon dioxide and other greenhouse gas emissions.